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IB/srpt: Remove use of transport_do_task_sg_chain()

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With the modern target core, se_cmd->t_data_sg already points to a
sglist that covers the whole command.  So task_sg chaining is needless
overhead and obfuscation -- instead of splicing the split up task
sglists back into one list, we can just use the original list directly.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Roland Dreier 2012-03-30 11:29:12 -07:00 committed by Nicholas Bellinger
parent e182d6828d
commit 6f9e7f01b6
1 changed files with 2 additions and 6 deletions
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8
drivers/infiniband/ulp/srpt/ib_srpt.c
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@ -1099,9 +1099,8 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
dir = cmd->data_direction; dir = cmd->data_direction;
BUG_ON(dir == DMA_NONE); BUG_ON(dir == DMA_NONE);
transport_do_task_sg_chain(cmd); ioctx->sg = sg = sg_orig = cmd->t_data_sg;
ioctx->sg = sg = sg_orig = cmd->t_tasks_sg_chained; ioctx->sg_cnt = sg_cnt = cmd->t_data_nents;
ioctx->sg_cnt = sg_cnt = cmd->t_tasks_sg_chained_no;
count = ib_dma_map_sg(ch->sport->sdev->device, sg, sg_cnt, count = ib_dma_map_sg(ch->sport->sdev->device, sg, sg_cnt,
opposite_dma_dir(dir)); opposite_dma_dir(dir));
@ -4003,9 +4002,6 @@ static int __init srpt_init_module(void)
srpt_target->tf_ops = srpt_template; srpt_target->tf_ops = srpt_template;
/* Enable SG chaining */
srpt_target->tf_ops.task_sg_chaining = true;
/* /*
* Set up default attribute lists. * Set up default attribute lists.
*/ */